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Re: [ts-7000] TS-7400 & Linux Latency?

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Subject: Re: [ts-7000] TS-7400 & Linux Latency?
From: "David L. Martin" <>
Date: Tue, 30 Jan 2007 09:37:13 -0500
On Mon, 2007-01-29 at 19:25 -0800, Joel Winarske wrote:
> 
> > Are you talking about sending a character in a 2ms window, or
> turning
> > around the communications channel?
> > 
> 
> It's a master slave model. The slave would be the TS-4000. The slave 
> needs to respond to the bus master in no less than 2ms. 700us
> typical, 
> 2ms worst case.

I did a big job for UPS, where they required a turn around of 10msec.
By just bumping the task priority and eliminating file accesses I was
able to achieve that.

For a 2msec window I think you are going to need either a driver
specific to that communications protocol, or shift to a RT extensions.
-- 
David L. Martin


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